Hi,
On 29.07.2013 00:09, ubuntugirl wrote:
Using your PCB layer pictures, I've traced the PWL
signal to the 6-pin
IC near the SPCA. The IC label reads "A3-90E", and considering the
inductor right next to it, I'm guessing that it's a boost converter
for the backlight LED. I'm sure you saw this IC too when you were
figuring the BL out - were you perchance able to figure out the full
name / part # of this IC, or maybe even find a datasheet for it?
No, and I didn't really care about it to be honest, since it just works.
I thus gather that you had (most of) the actual pinout
figured out at
some point. Would you perchance still have it somewhere in your notes?
Unfortunately no, I checked if I still have it on my laptop from 28c3,
but it doesn't seem like it...
Regards,
Steve